Holter recorder testing device



FIG. 1 is a isometric view from the front and above _of my new designfor Holter recorder testing device;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is one side view of the new design, the _ opposite side beingshown in FIG. 6; and

FIG. 7 is a bottom view thereof.

The ornamental design for Holter recorder testing device, as shown.